Today I found one oft bronze cores on his side gasping. About an hour later a second one is doing the same. I can't see anything physically wrong with them apart from their behavior.
The tank is a mature community tank with gouramis, platies, blue neon tetras, bronze corys and some shrimp.
I did a water test and a 20% water change even though the results looked ok (ammonia-0, nitites-0,nitrates-40)
What could be wrong and can I save my corys?
The tank is a mature community tank with gouramis, platies, blue neon tetras, bronze corys and some shrimp.
I did a water test and a 20% water change even though the results looked ok (ammonia-0, nitites-0,nitrates-40)
What could be wrong and can I save my corys?